add a fodt to pdf fuzzer

Initially give it a fairly tiny input size limit.

Change-Id: Iabc2611174e88f1f6050edb21da4f28694bac4a8
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/151151
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>

Repository.mk

@@ -144,6 +144,7 @@ $(eval $(call gb_Helper_register_executables_for_install,OOO,brand, \
 	$(call gb_Helper_optional,FUZZERS,qpwfuzzer) \
 	$(call gb_Helper_optional,FUZZERS,slkfuzzer) \
 	$(call gb_Helper_optional,FUZZERS,fodtfuzzer) \
+	$(call gb_Helper_optional,FUZZERS,fodt2pdffuzzer) \
 	$(call gb_Helper_optional,FUZZERS,fodsfuzzer) \
 	$(call gb_Helper_optional,FUZZERS,fodpfuzzer) \
 	$(call gb_Helper_optional,FUZZERS,xlsfuzzer) \

bin/oss-fuzz-setup.sh

@@ -153,5 +153,6 @@ curl --no-progress-meter -S \
     -C - -O https://dev-www.libreoffice.org/corpus/mtpfuzzer_seed_corpus.zip \
     -C - -O https://dev-www.libreoffice.org/corpus/htmlfuzzer_seed_corpus.zip \
     -C - -O https://dev-www.libreoffice.org/corpus/zipfuzzer_seed_corpus.zip
+cp fodtfuzzer_seed_corpus.zip fodt2pdffuzzer_seed_corpus.zip
 
 echo end downloading dependencies at `date -u`

vcl/Executable_fodt2pdffuzzer.mk

@@ -0,0 +1,50 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+include $(SRCDIR)/vcl/commonfuzzer.mk
+
+$(eval $(call gb_Executable_Executable,fodt2pdffuzzer))
+
+$(eval $(call gb_Executable_use_api,fodt2pdffuzzer,\
+    offapi \
+    udkapi \
+))
+
+$(eval $(call gb_Executable_use_externals,fodt2pdffuzzer,\
+    $(fuzzer_externals) \
+    epubgen \
+    revenge \
+))
+
+$(eval $(call gb_Executable_set_include,fodt2pdffuzzer,\
+    $$(INCLUDE) \
+    -I$(SRCDIR)/vcl/inc \
+))
+
+$(eval $(call gb_Executable_use_libraries,fodt2pdffuzzer,\
+    $(fuzzer_writer_libraries) \
+    $(fuzzer_core_libraries) \
+    pdffilter \
+))
+
+$(eval $(call gb_Executable_use_static_libraries,fodt2pdffuzzer,\
+    $(fuzzer_statics) \
+    fuzzer_writer \
+))
+
+$(eval $(call gb_Executable_add_exception_objects,fodt2pdffuzzer,\
+    vcl/workben/fodt2pdffuzzer \
+))
+
+$(eval $(call gb_Executable_add_libs,fodt2pdffuzzer,\
+    $(LIB_FUZZING_ENGINE) \
+))
+
+# vim: set noet sw=4 ts=4:

vcl/Module_vcl.mk

@@ -177,6 +177,7 @@ $(eval $(call gb_Module_add_targets,vcl,\
     Executable_qpwfuzzer \
     Executable_slkfuzzer \
     Executable_fodtfuzzer \
+    Executable_fodt2pdffuzzer \
     Executable_fodsfuzzer \
     Executable_fodpfuzzer \
     Executable_xlsfuzzer \

vcl/workben/fodt2pdffuzzer.cxx

@@ -0,0 +1,59 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <tools/stream.hxx>
+#include <vcl/FilterConfigItem.hxx>
+#include <com/sun/star/awt/XToolkit.hpp>
+#include <com/sun/star/ucb/XContentProvider.hpp>
+#include <com/sun/star/ucb/XUniversalContentBroker.hpp>
+#include "commonfuzzer.hxx"
+
+extern "C" void* SwCreateDialogFactory() { return nullptr; }
+
+extern "C" bool TestPDFExportFODT(SvStream& rStream);
+
+extern "C" int LLVMFuzzerInitialize(int* argc, char*** argv)
+{
+    if (__lsan_disable)
+        __lsan_disable();
+
+    CommonInitialize(argc, argv);
+
+    // initialise unconfigured UCB:
+    css::uno::Reference<css::ucb::XUniversalContentBroker> xUcb(
+        comphelper::getProcessServiceFactory()->createInstance(
+            "com.sun.star.ucb.UniversalContentBroker"),
+        css::uno::UNO_QUERY_THROW);
+    css::uno::Sequence<css::uno::Any> aArgs{ css::uno::Any(OUString("NoConfig")) };
+    css::uno::Reference<css::ucb::XContentProvider> xFileProvider(
+        comphelper::getProcessServiceFactory()->createInstanceWithArguments(
+            "com.sun.star.ucb.FileContentProvider", aArgs),
+        css::uno::UNO_QUERY_THROW);
+    xUcb->registerContentProvider(xFileProvider, "file", true);
+
+    // create and hold a reference to XToolkit here to avoid the lsan warning about its leak
+    // due to getting created in the unusual case of no vcl main loop
+    static css::uno::Reference<awt::XToolkit> xTk(
+        comphelper::getProcessServiceFactory()->createInstance("com.sun.star.awt.Toolkit"),
+        css::uno::UNO_QUERY_THROW);
+
+    if (__lsan_enable)
+        __lsan_enable();
+
+    return 0;
+}
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
+{
+    SvMemoryStream aStream(const_cast<uint8_t*>(data), size, StreamMode::READ);
+    (void)TestPDFExportFODT(aStream);
+    return 0;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

vcl/workben/fodt2pdffuzzer.options

@@ -0,0 +1,3 @@
+[libfuzzer]
+max_len = 2048
+dict = xml.dict